PartsTable
Technical Data Sheet
PartsTable / COMPONENT / FF-B-187/01-489
FF-B-187/01-489 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The FF-B-187/01-489 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3899, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
FF-B-187/01-489
NSN: 3110-00-100-3899
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFF-B-187/01-489
NSN3110-00-100-3899
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-187/01-489 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BACKFACE CORNER RADIUS: 0.0500 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 4
•
MATERIAL: STEEL CUP
•
CONE WIDTH: 0.8661 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 4.3307 INCHES NOMINAL IN
•
BORE DIAMETER: 2.6250 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.1250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BACKFACE CORNER RADIUS0.0500 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 4
MATERIALSTEEL CUP
CONE WIDTH0.8661 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER4.3307 INCHES NOMINAL IN
OVERALL WIDTH0.8661 INCHES NOMINAL IN
BORE DIAMETER2.6250 INCHES NOMINAL IN
STANDOUT WIDTH0.1250 INCHES NOMINAL IN
CUP WIDTH0.7411 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
29316Interchangeable
interchangeable cross-reference
interchangeable
A29316Interchangeable
interchangeable cross-reference
interchangeable
64656Interchangeable
interchangeable cross-reference
interchangeable
C8TZ 4676-AInterchangeable
interchangeable cross-reference
interchangeable
3G1606Interchangeable
interchangeable cross-reference
interchangeable
466430-105Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-187/01-489?
FF-B-187/01-489 is a FF-B-187/01-489.
What parts can replace FF-B-187/01-489?
There are 12 known substitutes for FF-B-187/01-489: 29316, A29316, 64656 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-187/01-489?
FF-B-187/01-489 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3899. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026